About Clegg Engine ( known locally as Clegg Automotive and Machine )

Serdi pic

Founded in 1972 by Earl Clegg, Clegg Automotive and Machine has grown into one of the largest Automotive Machine Shops in the West. Quality, integrity and service are the backbone of Clegg Automotive and Machine success.


While our specialty is Cylinder heads, we are also a full Machine Shop with the latest equipment and the greatest employees. All work is done on our premises and starts with a complete tear-down and thorough inspection of every head entering our shop. After a complete evaluation of all components, its on to our State-of-the-Art thermal cleaning system and magnafluxing. At this point, the head enters the second stage of our high tech machine shop where qualified and certified machinists handle the precision stages of restoration to ensure you of superior workmanship and quality every time. CBN resurfacing is performed to eliminate the possibility of head warpage. Valve seats always recieve a 3 angle valve job on one of our 3 Serdi machines. Each valve is machine dressed at the stem and face, conforming with OEM specs. All springs are tension tested, and worn rocker studs are replaced when necessary. In addition new freeze plugs, pollution plugs, valve keepers and valve seals are installed. The cylinder head is then vacuum tested to ensure proper seating of all valves. Specifications and technical updates are readily available thru our AREA and Prosis data programs. This information is utilized during the remanufacturing process to ensure accuracy at all times. Only after a final inspection are our heads ready to ship. All this and more, coupled with the courteous and friendly service make our cylinder heads the best.